Aluminate High Alumina Cement

Product Introduction：
Aluminate cement is also known as refractory cement. Aluminate cement is a hydraulic cementitious material made by calcining bauxite and limestone as raw materials, using calcium aluminate as the main component and alumina content of about 50%. It is then ground into a clinker. Aluminate cement usually is yellow or brown, and some are gray in color.

Product Highlights:
1. Fast solidification and hardening speed, high early strength
2. High hydration heat, concentrated heat release
3. Strong resistance to sulfate attack
4. Good high-temperature resistance
 
Application:
Aluminate high alumina cement is widely used in various high-temperature, corrosion-resistant, and special engineering fields, such as:
(1) Refractory industry: used for producing various refractory castables, refractory bricks, and other refractory materials.
(2) Chemical industry: used as corrosion-resistant lining for equipment and pipelines in fertilizer plants, refineries, chemical plants, etc.
(3) Water conservancy engineering: used for sulfate resistant water conservancy projects such as cement concrete dams, embankments, and channels.
(4) Construction industry: used for anti-corrosion and sulfate resistant engineering projects such as building foundations, basements, and underground pipelines.
(5) Mining industry: used for anti-corrosion and sulfate resistant engineering such as underground support and tunnel lining in mines.
(6) Metallurgical industry: used as refractory lining for equipment such as blast furnaces, electric furnaces, and smelting furnaces.
 
 Technical Data:
 

Classification		Industrial Boiler Only	CA50 Unshaped Refractory Material Binder Series Products
Product Grade		CA50F	A600	A700	A900	CA50R
Chemical Composition	SiO₂	≤8.0	≤7.8	≤7.5	≤5.5	≤7.0
	Al₂O₃	≥50.0	≥50.0	≥51.0	≥53.5	≥52.0
	Fe₂O₃	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5
	R₂O	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4
	S	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
	C1	≤0.1	≤0.1	≤0.1	≤0.1	≤0.1
325M Sieve Residue(%) 325M		≤20	≤15	≤12	≤8	≤8
S(m²/kg)		≥300	≥300	≥320	≥350	≥350
Initial Setting Time(min)		≥30	≥45	≥60	≥90	≥30
Final Setting Time(h)		≤6	≤6	≤6	≤6	≤6
Flexural Strengtht(MPa)	6h	——	——	——	——	≥3.0
	1d	≥5.5	≥6.0	≥6.5	≥8.0	≥7.0
	3d	≥6.5	≥7.0	≥7.5	≥10.0	≥8.0
Compressive Strength(MPa)	6h	——	——	——	——	≥30
	1d	≥40	≥45	≥55	≥72	≥60
	3d	≥50	≥55	≥65	≥82	≥70